EXHIBIT 11 SILGAN HOLDINGS INC. COMPUTATION OF EARNINGS PER COMMON SHARE (Dollars in thousands, except per share data) Quarter Quarter Ended Ended 9/30/97 9/30/96 ------- ------- Net income available to common stockholders ........ $ 14,468 $ 17,328 =========== =========== Weighted average common shares outstanding ......... 18,862,834 16,209,859 Incremental shares issuable pursuant to employee stock options (if dilutive) ...................... 1,749,940 1,621,951 ----------- ----------- Total shares ....................................... 20,612,774 17,831,810 =========== =========== Net income per common share ........................ $ 0.70 $ 0.97 =========== =========== Nine Months Nine Months Ended Ended 9/30/97 9/30/96 ------- ------- Net income available to common stockholders ........ $ 27,297 $ 26,996 =========== =========== Weighted average common shares outstanding ......... 18,246,167 18,363,531 Incremental shares issuable pursuant to employee stock options (if dilutive) ...................... 1,714,721 1,621,951 ----------- ----------- Total shares ....................................... 19,960,888 19,985,482 =========== =========== Net income per common share ........................ $ 1.37 $ 1.35 =========== ===========